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Alaska Earthquake History
Since October 9, 1900, the USGS has recorded 5,198 earthquakes of magnitude 4.5 or greater in Alaska, 420 of them magnitude 6 or above. The strongest was M 9.2.
By decade
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Strongest in Alaska
M 9.2 · The 1964 Prince William Sound, Alaska EarthquakeMarch 28, 1964M 8.6 · The 1946 Unimak Island, Alaska EarthquakeApril 1, 1946M 8.2 · 1938 Semidi Islands, Alaska EarthquakeNovember 10, 1938M 8.2 · 2021 Chignik, Alaska EarthquakeJuly 29, 2021M 7.9 · 261 km SE of Chiniak, AlaskaJanuary 23, 2018M 7.9 · 2002 Denali Fault, Alaska EarthquakeNovember 3, 2002M 7.9 · 200 km WSW of Yakutat, AlaskaNovember 30, 1987M 7.9 · Kodiak Island region, AlaskaOctober 9, 1900M 7.8 · 81 km E of Nikolski, AlaskaJuly 2, 1965M 7.8 · 22 km W of Elfin Cove, AlaskaJuly 10, 1958
All recorded earthquakes
M 4.5 mbJanuary 28, 1985
152 km S of False Pass, Alaska · depth 33 km
M 4.6 mbJanuary 17, 1985
19 km S of Funny River, Alaska · depth 60 km
M 4.5 mbJanuary 14, 1985
169 km ESE of Atka, Alaska · depth 33 km
M 5.7 mbJanuary 9, 1985
100 km NW of Yakutat, Alaska · depth 15 km
M 5.1 mbJanuary 6, 1985
39 km NW of Akutan, Alaska · depth 131 km
M 4.8 mbJanuary 2, 1985
Fox Islands, Aleutian Islands, Alaska · depth 235 km
M 6.0 mwJanuary 2, 1985
98 km ESE of Perryville, Alaska · depth 33 km
M 5.0 mbDecember 27, 1984
121 km SSE of False Pass, Alaska · depth 33 km
M 4.7 mbDecember 20, 1984
43 km S of Akhiok, Alaska · depth 36 km
M 5.2 msDecember 8, 1984
48 km ENE of Denali National Park, Alaska · depth 24 km
M 4.9 mbDecember 7, 1984
194 km SW of Nikolski, Alaska · depth 33 km
M 4.8 mbDecember 3, 1984
96 km SSW of Nikolski, Alaska · depth 33 km
M 4.8 mbNovember 27, 1984
74 km SSW of False Pass, Alaska · depth 33 km
M 4.6 mbNovember 23, 1984
135 km SW of Nikolski, Alaska · depth 33 km
M 4.8 mbNovember 23, 1984
35 km SW of False Pass, Alaska · depth 33 km
M 4.6 mbNovember 19, 1984
13 km S of King Salmon, Alaska · depth 206 km
M 4.8 mbNovember 18, 1984
90 km SE of Old Harbor, Alaska · depth 33 km
M 5.0 mbNovember 17, 1984
53 km WSW of Denali National Park, Alaska · depth 3 km
M 4.7 mbNovember 8, 1984
174 km SW of Nikolski, Alaska · depth 33 km
M 4.6 mbNovember 8, 1984
164 km WSW of Nikolski, Alaska · depth 33 km
M 5.9 mwNovember 8, 1984
167 km WSW of Nikolski, Alaska · depth 33 km
M 4.8 mbNovember 8, 1984
171 km WSW of Nikolski, Alaska · depth 33 km
M 4.6 mbNovember 3, 1984
282 km S of Akhiok, Alaska · depth 33 km
M 5.0 mbOctober 20, 1984
91 km SSE of Nikolski, Alaska · depth 33 km
M 4.5 mbOctober 19, 1984
27 km WNW of Susitna, Alaska · depth 77 km
M 4.7 mbOctober 18, 1984
50 km SE of Denali National Park, Alaska · depth 135 km
M 4.9 mbOctober 17, 1984
75 km SE of Nikolski, Alaska · depth 33 km
M 5.0 mbOctober 15, 1984
73 km S of Nikolski, Alaska · depth 33 km
M 4.7 mbOctober 15, 1984
110 km S of Nikolski, Alaska · depth 33 km
M 4.6 mbOctober 15, 1984
56 km SSE of Nikolski, Alaska · depth 33 km
M 4.6 mbOctober 14, 1984
57 km NNE of Nikolski, Alaska · depth 33 km
M 4.8 mbOctober 13, 1984
135 km S of False Pass, Alaska · depth 33 km
M 5.0 mbOctober 13, 1984
141 km S of False Pass, Alaska · depth 33 km
M 4.6 mbOctober 4, 1984
24 km SSE of Port Graham, Alaska · depth 63 km
M 4.6 mbOctober 3, 1984
71 km S of False Pass, Alaska · depth 33 km
M 4.6 mbSeptember 29, 1984
14 km NW of Hope, Alaska · depth 62 km
M 4.7 mbSeptember 26, 1984
164 km S of False Pass, Alaska · depth 33 km
M 4.7 mbSeptember 25, 1984
25 km SSE of Unalaska, Alaska · depth 65 km
M 5.9 mwSeptember 23, 1984
66 km SSE of Akutan, Alaska · depth 33 km
M 5.1 mbSeptember 20, 1984
32 km SW of Cordova, Alaska · depth 26 km
Source: U.S. Geological Survey, Earthquake Hazards Program. Older and smaller earthquakes are under-counted relative to recent decades as instrumentation improved. A record of past shaking is not a forecast. See About the Data.